Cobertura (Coverage Tool): How to display the form

[zak100]

TL;DR Summary

I am trying to run cobertura. I found a website which displays a for but I can't display it. I want to know how to display the form,

Hi,
I want to use cobertura for coverage. I followed the following link:
https://electric-cloud.com/plugins/directory/p/cobertura/
That link provides a EC-Cobertura.jar file through download. I think it creates a parameter for passing arguments to cobertura. I am trying to run EC-Cobertura.jar but its giving me error:

~/cobertura$ ls -l EC-Cobertura.jar

-rw-rw-r-- 1 zulfi zulfi 165174 Mar 8 17:53 EC-Cobertura.jar

:~/cobertura$ java -jar EC-Cobertura.jar

no main manifest attribute, in EC-Cobertura.jar

:~/cobertura$ sudo apt-get install binfmt-support

[sudo] password for zulfi:

Reading package lists... Done

Building dependency tree

Reading state information... Done

binfmt-support is already the newest version (2.1.8-2).

binfmt-support set to manually installed.

0 upgraded, 0 newly installed, 0 to remove and 258 not upgraded.

:~/cobertura$ ./EC-Cobertura.jar

bash: ./EC-Cobertura.jar: Permission denied

:~/cobertura$ chmod a+rx EC-Cobertura.jar

zulfi@lc2530hz:~/cobertura$ ./EC-Cobertura.jar

no main manifest attribute, in /home/zulfi/cobertura/EC-Cobertura.jar

:~/cobertura$

I have already downloaded the cobertura and its installed on my ubuntu 18.04.

:~$ whereis cobertura-instrument

cobertura-instrument: /usr/bin/cobertura-instrument /usr/share/man/man1/cobertura-instrument.1.gz

:~$

And it has the same version as the tar file provides whose link is :
https://sourceforge.net/projects/cobertura/
provided in the link of the associated help button page:

:~$ cobertura-instrument -version

Cobertura 2.1.1 - GNU GPL License (NO WARRANTY) - See COPYRIGHT file

[INFO] Cobertura: Saved information on 0 classes.

[INFO] Cobertura: Saved information on 0 classes.

:~$

But the help file does not say anything about the jar file. I still don't know how to execute the jar file and how to display the form shown on the link:
http://downloads.electric-cloud.com/plugins/EC-Cobertura/EC-Cobertura_help.xhtmlSomebody please guide me how to display the form? What is the purpose of EC-Cobertura.jar in this connection.
Zulfi.

 

[jedishrfu]

When there's no manifest then you have to run a java app via the java command.

$ java -cp <your_jar_file_path> xxx.yyy.zzz.<The_App_Name>

or

$ java -jar <your_jar_file_path> xxx.yyy.zzz.<The_App_Name>

The -cp adds the app's jar to the classpath that java searches. The xxx.yyy.zzz.<The_App_Name> is the class containing the app's main method. The java command will search for the xxx.yyy.zzz.<The_App_Name> in all jars in the classpath which then causes other classes to be loaded.

https://stackoverflow.com/questions/15626369/how-to-run-java-jar-without-manifest-mf

The reference below has other ways of building and/or running the jar file:

https://exceptionshub.com/cant-execute-jar-file-no-main-manifest-attribute.html